2.4.0.8008 - Disclosure - Summary of Significant Accounting Policiestruefalsefalse1false falsefalseContext_6ME__30-Jun-2013http://www.sec.gov/CIK0000086264duration2013-01-01T00:00:002013-06-30T00:00:001true 1us-gaap_AccountingPoliciesAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Summary of Significant Accounting Policies [Abstract]2false 2us-gaap_SignificantAccountingPoliciesTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00<div align="left" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt; font-weight: bold;"><font style="display: inline; text-decoration: underline;">Note 2 – Summary of Significant Accounting Policies</font></font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;"><font style="display: inline; text-decoration: underline;">Basis of Presentation</font></font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information.  Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements.  In the opinion of management, the accompanying unaudited consolidated financial statements include all adjustments (consisting of normal and recurring accruals) considered necessary to present fairly the Company’s financial position as of June 30, 2013, the Company’s results of operations for the three and six months ended June 30, 2013 and 2012 and the Company’s cash flows for the six months ended June 30, 2013 and 2012.   Operating results for the three and six months ended June 30, 2013 and 2012 are not necessarily indicative of the results that may be expected for the full year because of the impact of fluctuations in prices received for natural gas and oil, natural production declines, the uncertainty of exploration and development drilling results and other factors.  For a more complete understanding of the Company’s operations, financial position and accounting policies, the unaudited financial statements and the notes thereto should be read in conjunction with the Company’s audited consolidated financial statements for the year ended December 31, 2012 filed on Form 10-K with the Securities and Exchange Commission (“SEC”).</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">In the course of preparing the unaudited financial statements, management makes various assumptions, judgments and estimates to determine the reported amount of assets, liabilities, revenue and expenses and in the disclosures of commitments and contingencies.  Changes in these assumptions, judgments and estimates will occur as a result of the passage of time and the occurrence of future events and accordingly, actual results could differ from amounts initially established.</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;"><font style="display: inline; text-decoration: underline;">Principles of Consolidation</font></font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">The consolidated financial statements include the accounts of Carbon, Nytis USA and its consolidated subsidiaries.  The Company owns 100% of Nytis USA.  Nytis USA owns approximately 99% of Nytis LLC.  Nytis LLC also holds an interest in various oil and gas partnerships.</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">For partnerships where the Company has a controlling interest, the partnerships are consolidated.  The Company is currently consolidating on a pro-rata basis 42 partnerships.  In these instances, the Company reflects the non-controlling ownership interest in partnerships and subsidiaries as non-controlling interests on its consolidated statements of operations and also reflects the non-controlling ownership interests in the net assets of the partnerships as non-controlling interests within stockholders’ equity on its consolidated balance sheets.  All significant intercompany accounts and transactions have been eliminated.</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">In accordance with established practice in the oil and gas industry, the Company’s consolidated financial statements also include its pro-rata share of assets, liabilities, income and lease operating and general and administrative expenses of the oil and gas partnerships in which the Company has a non-controlling interest.</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">Non-majority owned investments that do not meet the criteria for pro-rata consolidation are accounted for using the equity method when the Company has the ability to significantly influence the operating decisions of the investee.  When the Company does not have the ability to significantly influence the operating decisions of an investee, the cost method is used.  All transactions, if any, with investees have been eliminated in the accompanying consolidated financial statements.</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div style="text-indent: 0pt; margin-left: 0pt; margin-right: 0pt;" ><font style="display: inline; font-family: times new roman; font-size: 10pt;"><font style="display: inline; text-decoration: underline;">Accounting for Oil and Gas Operations</font></font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">The Company uses the full cost method of accounting for oil and gas properties.  Accordingly, all costs incidental to the acquisition, exploration and development of oil and gas properties, including costs of undeveloped leasehold, dry holes and leasehold equipment, are capitalized.  Overhead costs incurred that are directly identified with acquisition, exploration and development activities undertaken by the Company for its own account, and which are not related to production, general corporate overhead or similar activities, are also capitalized.</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">Unproved properties are excluded from amortized capitalized costs until it is determined whether or not proved reserves can be assigned to such properties.  The Company assesses its unproved properties for impairment at least annually.  Significant unproved properties are assessed individually.</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">Capitalized costs are depleted by an equivalent unit-of-production method, converting gas to oil at the ratio of six thousand cubic feet of natural gas to one barrel of oil.  Depletion is calculated using capitalized costs, including estimated asset retirement costs, plus estimated future expenditures (based on current costs) to be incurred in developing proved reserves, net of estimated salvage values.</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">No gain or loss is recognized upon disposal of oil and gas properties unless such disposal significantly alters the relationship between capitalized costs and proved reserves.  All costs related to production activities, including work-over costs incurred solely to maintain or increase levels of production from an existing completion interval, are charged to expense as incurred.</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">The Company performs a ceiling test quarterly.  The full cost ceiling test is a limitation on capitalized costs prescribed by SEC Regulation S-X Rule 4-10.  The ceiling test is not a fair value based measurement. Rather, it is a standardized mathematical calculation.  The ceiling test provides that capitalized costs less related accumulated depletion and deferred income taxes may not exceed the sum of (1) the present value of future net revenue from estimated production of proved oil and gas reserves using current prices, excluding the future cash outflows associated with settling asset retirement obligations that have been accrued on the balance sheet, at a discount factor of 10%; plus (2) the cost of properties not being amortized, if any; plus (3) the lower of cost or estimated fair value of unproved properties included in the costs being amortized, if any; less (4) income tax effects related to differences in the book and tax basis of oil and gas properties.  Should the net capitalized costs exceed the sum of the components noted above, a ceiling test write-down would be recognized to the extent of the excess capitalized costs.  Such impairments are permanent and cannot be recovered in future periods even if the sum of the components noted above exceeds capitalized costs in future periods.</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">As of June 30, 2013, based on oil prices of $91.60 per barrel and gas prices of $3.42 per Mcf, the Company’s full cost pool did not exceed the ceiling limitations.  For the three and six months ended June 30, 2012, the Company recorded a non-cash impairment expense of approximately $9.9 million and $15.4 million, respectively.</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;"><font style="display: inline; text-decoration: underline;">Investments in Affiliates</font></font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">Investments in non-consolidated affiliates are accounted for under either the equity or cost method of accounting as appropriate.  The cost method of accounting is used for investments in affiliates in which the Company has less than a 20% of the voting interests of a corporate affiliate or less than a 5% interest of a partnership or limited liability company and does not have significant influence.  Investments in non-consolidated affiliates, accounted for using the cost method of accounting, are recorded at cost and an impairment assessment of each investment is made annually to determine if a decline in the fair value of the investment, other than temporary, has occurred.  A permanent impairment is recognized if a decline in the fair value occurs.  If the Company holds between 20% and 50% of the voting interest in non-consolidated corporate affiliates or greater than 5% of a partnership or limited liability company and exercises significant influence or control, the equity method of accounting is used to account for the investment.  The Company’s investment in an affiliate that is accounted for using the equity method of accounting, would increase or decrease by the Company’s share of the affiliate’s profits or losses and such profits or losses would be recognized in the Company’s statements of operations.  The Company reviews equity method investments for impairment whenever events or changes in circumstances indicate that an other than temporary decline in value has occurred.  The amount of the impairment is based on quoted markets prices, where available, or other valuation techniques.</font></div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt; font-weight: bold;"> </font></div> <div style="text-indent: 0pt; margin-left: 0pt; margin-right: 0pt;" ><font style="display: inline; font-family: times new roman; font-size: 10pt;"><font style="display: inline; text-decoration: underline;">Asset Retirement Obligations</font></font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">The Company’s asset retirement obligations (“ARO”) relate to future costs associated with the plugging and abandonment of oil and gas wells, removal of equipment and facilities from leased acreage and returning such land to its original condition.  The fair value of a liability for an ARO is recorded in the period in which it is incurred and the cost of such liability is recorded as an increase in the carrying amount of the related long-lived asset by the same amount.  The liability is accreted each period and the capitalized cost is depleted on a units-of-production basis as </font><font style="display: inline; font-family: times new roman; font-size: 10pt;">part of the full cost pool.  Revisions to estimated AROs result in adjustments to the related capitalized asset and corresponding liability.</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">The estimated ARO liability is based on estimated economic lives, estimates as to the cost to abandon the wells in the future, and federal and state regulatory requirements.  The liability is discounted using a credit-adjusted risk-free rate estimated at the time the liability is incurred or increased as a result of a reassessment of expected cash flows and assumptions inherent in the estimation of the liability.  Upward revisions to the liability could occur due to changes in estimated abandonment costs or well economic lives, or if federal or state regulators enact new requirements regarding the abandonment of wells.  AROs are valued utilizing Level 3 fair value measurement inputs.</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">The following table is a reconciliation of the ARO for the six months ended June 30, 2013 and 2012:</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="left"> <table style="width: 100%; font-family: times new roman; font-size: 10pt;" cellspacing="0" cellpadding="0"> <tr> <td style="border-top: black 2px solid;" valign="bottom"><font style="display: inline; font-family: times new roman; font-size: 10pt;">  </font></td> <td style="border-top: black 2px solid;" valign="bottom"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-top: black 2px solid;" valign="bottom" colspan="2"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="text-align: left; border-top: black 2px solid;" valign="bottom" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-top: black 2px solid;" valign="bottom"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-top: black 2px solid;" valign="bottom" colspan="2"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="text-align: left; border-top: black 2px solid;" valign="bottom" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> </tr> <tr> <td valign="bottom"><font style="display: inline; font-family: times new roman; font-size: 10pt;">  </font></td> <td valign="bottom"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td valign="bottom" colspan="6"> <div align="center" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">Six Months Ended June 30,</font></div> </td> <td style="text-align: left;" valign="bottom" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> </tr> <tr> <td style="border-bottom: black 2px solid;" valign="bottom"> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 9pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">(in thousands)</font></div> </td> <td style="padding-bottom: 2px;" valign="bottom"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 2px solid;" valign="bottom" colspan="2"> <div align="center" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">2013</font></div> </td> <td style="text-align: left; padding-bottom: 2px;" valign="bottom" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="padding-bottom: 2px;" valign="bottom"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 2px solid;" valign="bottom" colspan="2"> <div align="center" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">2012</font></div> </td> <td style="text-align: left; padding-bottom: 2px;" valign="bottom" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> </tr> <tr bgcolor="#cceeff"> <td valign="bottom" width="70%"> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 9pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">Balance at beginning of period</font></div> </td> <td align="right" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="text-align: left;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;">$</font></td> <td style="text-align: right;" valign="bottom" width="12%"><font style="display: inline; font-family: times new roman; font-size: 10pt;">2,321</font></td> <td style="text-align: left;" valign="bottom" width="1%" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td align="right" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="text-align: left;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;">$</font></td> <td style="text-align: right;" valign="bottom" width="12%"><font style="display: inline; font-family: times new roman; font-size: 10pt;">2,149</font></td> <td style="text-align: left;" valign="bottom" width="1%" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> </tr> <tr bgcolor="white"> <td valign="bottom" width="70%"> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 9pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;"><font style="margin-left: 9.35pt;" ></font>Accretion expense</font></div> </td> <td align="right" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="text-align: left;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="text-align: right;" valign="bottom" width="12%"><font style="display: inline; font-family: times new roman; font-size: 10pt;">68</font></td> <td style="text-align: left;" valign="bottom" width="1%" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td align="right" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="text-align: left;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="text-align: right;" valign="bottom" width="12%"><font style="display: inline; font-family: times new roman; font-size: 10pt;">52</font></td> <td style="text-align: left;" valign="bottom" width="1%" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> </tr> <tr bgcolor="#cceeff"> <td style="padding-bottom: 2px;" valign="bottom" width="70%"> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 9pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;"><font style="margin-left: 9.35pt;" ></font>Additions during period</font></div> </td> <td align="right" style="padding-bottom: 2px;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 2px solid; text-align: left;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 2px solid; text-align: right;" valign="bottom" width="12%"><font style="display: inline; font-family: times new roman; font-size: 10pt;">151</font></td> <td style="text-align: left; padding-bottom: 2px;" valign="bottom" width="1%" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td align="right" style="padding-bottom: 2px;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 2px solid; text-align: left;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 2px solid; text-align: right;" valign="bottom" width="12%"><font style="display: inline; font-family: times new roman; font-size: 10pt;">10</font></td> <td style="text-align: left; padding-bottom: 2px;" valign="bottom" width="1%" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> </tr> <tr bgcolor="white"> <td valign="bottom" width="70%"><font style="display: inline; font-family: times new roman; font-size: 10pt;">  </font></td> <td valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="text-align: left;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="text-align: right;" valign="bottom" width="12%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="text-align: left;" valign="bottom" width="1%" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="text-align: left;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="text-align: right;" valign="bottom" width="12%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="text-align: left;" valign="bottom" width="1%" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> </tr> <tr bgcolor="#cceeff"> <td style="padding-bottom: 4px;" valign="bottom" width="70%"> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 9pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">Balance at end of period</font></div> </td> <td align="right" style="padding-bottom: 4px;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 4px double; text-align: left;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;">$</font></td> <td style="border-bottom: black 4px double; text-align: right;" valign="bottom" width="12%"><font style="display: inline; font-family: times new roman; font-size: 10pt;">2,540</font></td> <td style="text-align: left; padding-bottom: 4px;" valign="bottom" width="1%" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td align="right" style="padding-bottom: 4px;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 4px double; text-align: left;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;">$</font></td> <td style="border-bottom: black 4px double; text-align: right;" valign="bottom" width="12%"><font style="display: inline; font-family: times new roman; font-size: 10pt;">2,211</font></td> <td style="text-align: left; padding-bottom: 4px;" valign="bottom" width="1%" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> </tr> <tr bgcolor="white"> <td style="border-bottom: black 2px solid;" valign="bottom" width="70%"><font style="display: inline; font-family: times new roman; font-size: 10pt;">  </font></td> <td style="border-bottom: black 2px solid;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 2px solid; text-align: left;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 2px solid; text-align: right;" valign="bottom" width="12%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 2px solid; text-align: left;" valign="bottom" width="1%" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 2px solid;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 2px solid; text-align: left;" valign="bottom" width="1%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 2px solid; text-align: right;" valign="bottom" width="12%"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> <td style="border-bottom: black 2px solid; text-align: left;" valign="bottom" width="1%" nowrap="nowrap"><font style="display: inline; font-family: times new roman; font-size: 10pt;"> </font></td> </tr> </table> </div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"><font style="display: inline; font-family: times new roman; font-size: 10pt;"><font style="display: inline; text-decoration: underline;">Earnings Per Common Share</font></font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">Basic earnings (loss) per common share is computed by dividing the net income (loss) attributable to common shareholders for the period by the weighted average number of common shares outstanding during the period.  The shares of restricted common stock granted to certain officers and employees of the Company are included in the computation of basic net income (loss) per share only after the shares become fully vested.  Diluted earnings per common share includes both the vested and unvested shares of restricted stock and the potential dilution that could occur upon exercise of options and warrants to acquire common stock, computed using the treasury stock method, which assumes that the increase in the number of shares is reduced by the number of shares which could have been repurchased by the Company with the proceeds from the exercise of options and warrants (which were assumed to have been made at the average market price of the common shares during the reporting period).</font></div> <div style="line-height: 11.4pt; text-indent: 0pt; display: block;"> </div> <div align="justify" style="line-height: 11.4pt; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;"><font style="display: inline; font-family: times new roman; font-size: 10pt;">For each of the three and six months ended June 30, 2013, the diluted income per common share calculation excludes the dilutive effect of approximately 2.7 million common stock equivalents that were out-of-the-money.  For each of the three and six months ended June 30, 2012, the diluted loss per common share calculation excludes the dilutive effect of approximately 4.9 common stock equivalents due to the loss.</font></div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for all significant accounting policies of the reporting entity.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18726-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18861-107790 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18743-107790 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18854-107790 false0Summary of Significant Accounting PoliciesfalseSummary of Significant Accounting PoliciesUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.cng.com/role/DisclosureSummaryOfSignificantAccountingPolicies12